Added 'value' property to PropertyValue.
Added 'value' property to PropertyValue.

jlhughes/foam,jlhughes/foam,osric-the-knight/foam,osric-the-knight/foam,osric-the-knight/foam,jacksonic/foam,shepheb/foam,shepheb/foam,foam-framework/foam,mdittmer/foam,foam-framework/foam,shepheb/foam,osric-the-knight/foam,foam-framework/foam,foam-framework/foam,jlhughes/foam,mdittmer/foam,jacksonic/foam,jacksonic/foam,jlhughes/foam,mdittmer/foam,mdittmer/foam,jacksonic/foam,foam-framework/foam